Home / 11,685.41-16,125.50-6,649.64

Finding the Fourth Proportional to 11,685.41, 16,125.50 and 6,649.64

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Solution

The fourth proportional to 11,685.41, 16,125.50 and 6,649.64 is: 9,176.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,685.41 : 16,125.50 = 6,649.64 : x
  2. Step 2: Convert to fraction form
    11,685.41/16,125.50 = 6,649.64/x
  3. Step 3: Cross multiply
    11,685.41x = 16,125.50 × 6,649.64
  4. Step 4: Simplify right side
    11,685.41x = 107,228,705.82
  5. Step 5: Solve for x
    x = 107,228,705.82/11,685.41
  6. Step 6: Final answer
    x = 9,176.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.